Min. Order Reference FOB Price
5 Sets US$200.00-500.00 / Set
Product Description
1. The vacuum tubes absorb the solar energy and transfer into the heat energy then pass to the U pipe, it can get high temperature. 2. The vacuum tubes heat pipe absorb the solar energy and transfer into the heat energy, then pass it to the U pipe. 3. There is no water in the vacuum tube, so the ...